Retainer for ball-bearings.



H. A. OLSSON & s. G. WINGQUIIST.

RETAINER FOR BALL BEARINGS.

APPLICATION FILED MAR. 18, 1911,

' Patented Apr. 16, 1912.

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EENNLNG ADOLF OLSSON. AND EVEN GUSTAF WINGQUIST, OF GOTTENBORG, SWEDEN,ASSIGNORS TO AKTIEBOLAGET SVENSKA KULLAGERFAIBRIKEN, OF GOTTENBORG,

SWEDEN, A CORPORATION OF SWEDEN.

RETAINER FOR BALL-BEARINGS.

Specification or Letters Patent.

Patented Apr. ltd. 191%.

Application filed March 18, 1911. Serial No. 615,340.

- Gottenborg, in the Kingdom of Sweden,

have invent-ed certain new and useful improvements in Retainers forBall-Bearings, of which the following is a specification, referencebeing had therein to the accompanying drawing.

.This invention relates to a retainer or cage for ball bearings, whichisso arranged that the same, in spite of being made in one piece, is ableto keep apart two rows or sets of balls'and to embrace the balls of thesaid rows simultaneously. Consequently, the retainer or cage is adaptedto ball bearings having two rows of balls, but a plurality of pairs ofsuch rows may, evidently be provided in the bearing each pair held inposition by a retainer.

In the accompanying drawing Figure 1 is a side View of a retainer withballs 10- cated in the same. Fig. 2 is a side View of a ball bearing andFig. 3 is an axial section of the same. Fig. 4 is an outer edge view ofapart of the retainer with balls, located in the same.

The retainer or cage consists of a circular ring 5 of sheet metal, whichring at its outer,

and inner edge respectively is provided with projections or teeth 6, 7,8, 9, extending alternately in opposite directions and longitudinally ofthe axis of the ring. lhe said teeth are eiiected in such manner, thatthe originally plane ring is provided with radial cuts at its outer andinner edges and at distances from each other determined by the number ofballs of each row. The teeth 4 has a spherical inner side, so that theinnor ring 2 together with the balls and the retainer can be rotatedlaterally inside the same, while the bearing is put together or taken topieces. The diameter of the retainer and the positions of the teeth areso adapted, that the teeth 6, 8 are locatedbetween the balls but outsidetheir center points with relation to the axis of thebearin a2 shortestdistance between the balls, so

that the balls are supported by the edges of the teeth, as shown inFigs. 1, 2 and 4. The inner teeth 7, 9 are located inside the centerpoints of the balls at their connection with the ring but are bentoutward and. extend into the spaces between the balls, so that the freeends of the teeth coincide with a circular line passing through thecenter points of the balls in the row. Consequently, eaclfball of therow is separated from the adjacent one by two teeth 6, 7 and 8, 9respectively, one of which at least, viz. the inner one, is located forsome part opposite the center points of the balls, so that the balls areprevented from forcing aside the teeth and approaching each other. Theballs are supported outward by the teeth 6, 8 and laterally by the bodyof the ring, which is cup shaped opposite each ball in accordance withthe size of the ball.

As the hearing is put together, the balls are located into the retainermounted on the inner ring of the hearing, which is easily effected owingto the fact that the teeth 6 or 8 yield outward, as the ball is forcedfrom the outside into the groove of the ring 2. The halls are then notable to leave by them" selves their places, because the ring 2 sup portsthe same inside radially and atone side, while the teeth 6, 8 supportthe same outside and radially. The ring 4 is then located outside thewhole. During the operation of the bearing the teeth 7 and 9, whichowing to the described positions of the same between the balls can notbe forced sidewise by the pressure exerted'by the balls, form distancepieces, which prevent the balls from approaching each other. Owing tothe described construction of the bearing the retainer, on the otherside, is prevented from coming into contact with he rings 1, 2 of thebearing.

The width of the teeth is greater than its - the combination of an innerwith Having now described our invention, what We claim as newand desireto secure by Letters Patent is:

1. A retainer for ball bearings with two rows of balls, consisting of aring of sheet metal located between the two rows of balls and providedat its outer edge with projections or teeth extending in both lateraldirectionsand located in the spaces between the balls, outside thecenter point of same, the said teeth having such a width as allowingthem to form outer supports to the balls, and which ring is provided, atits inneredge also, with projections or teeth extending in both lateraldirections and coinciding substantially with the circle passing throughthe centers of all of the balls of each row respectively, the said teethhaving a width corresponding to the shortest distance between the ballsof the row, for the purpose" of keeping the balls apart.

2. In ball bearings with two rows of balls, ring provided grooves forthe respective rows of balls, and a ball retainer consisting of a ringof sheet metal located between the rows of balls and provided at itsouter edge with projections or teeth extending in both lateraldirections and having a greater width than the shortest distance betweenthe balls, the said'teethtogether with thexouter edges of the groove ofthe ring balls from falling out of ing provided at the inner edge of thering of sheet metal and extending in both lateral Copies o1' thls patentmay be obtained for five cents each, by

preventing the the ring, teeth be-' directions and having such a theycoincide substantially with the circle passing through the center pointof the balls of the row and being concentric with the ring of sheetmetal.

3. In ball bearings, the combination of an inner bearing ring havingannular bearing grooves placed side by side, annular series of balls insaid grooves; and an annular retaining cage disposed with its bodypartdisposed about said ring and perpendicular to the axis thereof, saidbody part being provided at'its inner edgewith inner staggered teeth ofsubstantially constant Width and disposed between adjacent balls at thepoints of said balls nearest each other and inter seating the circlespassing through the cen ters of all of the balls, to positively holdsaid balls apart, the outer edge of said body-part being provided withthin, outwardly yieldable staggered teeth of a greater Width than saidinner teeth and extending in substantially opposite directions near theoutermost part of the balls and serving with the outer Walls of saidgrooves to yieldably hold the balls in place. I

In witness whereof, We have hereunto signed our names in the presence oftwo subscribing witnesses.

HENNING. ADOLF OLSSON. SVEN GUSTAF WINGQUIST.

Witnesses:

OLOF PALM, .AUe. JOHANSON.

addressing the Commissioner of Patents,

, Washington, D. C.

position that

